40025550457 has 2 divisors, whose sum is σ = 40025550458. Its totient is φ = 40025550456.

The previous prime is 40025550419. The next prime is 40025550463. The reversal of 40025550457 is 75405552004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36980828416 + 3044722041 = 192304^2 + 55179^2 .

It is a cyclic number.

It is not a de Polignac number, because 40025550457 - 2²⁷ = 39891332729 is a prime.

It is not a weakly prime, because it can be changed into another prime (40025550407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20012775228 + 20012775229.

It is an arithmetic number, because the mean of its divisors is an integer number (20012775229).

Almost surely, 2^40025550457 is an apocalyptic number.

It is an amenable number.

40025550457 is a deficient number, since it is larger than the sum of its proper divisors (1).

40025550457 is an equidigital number, since it uses as much as digits as its factorization.

40025550457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140000, while the sum is 37.

The spelling of 40025550457 in words is "forty billion, twenty-five million, five hundred fifty thousand, four hundred fifty-seven".